org.apache.tools.ant.types.resources.selectors

Class Compare

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.types.DataType

org.apache.tools.ant.types.resources.selectors.Compare

All Implemented Interfaces:

java.lang.Cloneable, ResourceSelector

public class Compare
extends DataType
implements ResourceSelector

ResourceSelector that compares against "control" Resource(s) using ResourceComparators.

Since:

Ant 1.7

Field Summary

Fields inherited from class org.apache.tools.ant.types.DataType

checked, ref

Fields inherited from class org.apache.tools.ant.ProjectComponent

description, location, project

Constructor Summary

Constructors

Constructor and Description
Compare()

Method Summary

Modifier and Type	Method and Description
void	add(ResourceComparator c) Add a ResourceComparator to this Compare selector.
ResourceCollection	createControl() Create the nested control element.
protected void	dieOnCircularReference(java.util.Stack<java.lang.Object> stk, Project p) Overrides the version from DataType to recurse on nested ResourceComparators.
boolean	isSelected(Resource r) Return true if this Resource is selected.
void	setAgainst(Quantifier against) Set the quantifier to be used.
void	setWhen(Comparison when) Set the comparison to be used.

Methods inherited from class org.apache.tools.ant.types.DataType

checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, setRefid, tooManyAttributes, toString

Methods inherited from class org.apache.tools.ant.ProjectComponent

getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Compare

public Compare()

Method Detail

add

public void add(ResourceComparator c)

Add a ResourceComparator to this Compare selector. If multiple ResourceComparators are added, they will be processed in LIFO order.

Parameters:

c - the ResourceComparator to add.

setAgainst

public void setAgainst(Quantifier against)

Set the quantifier to be used. Default "all".

Parameters:

against - the Quantifier EnumeratedAttribute to use.

setWhen

public void setWhen(Comparison when)

Set the comparison to be used. Default "equal".

Parameters:

when - the Comparison EnumeratedAttribute to use.

createControl

public ResourceCollection createControl()

Create the nested control element. These are the resources to compare against.

Returns:

ResourceCollection.

isSelected

public boolean isSelected(Resource r)

Return true if this Resource is selected.

Specified by:

isSelected in interface ResourceSelector

Parameters:

r - the Resource to check.

Returns:

whether the Resource was selected.

dieOnCircularReference

protected void dieOnCircularReference(java.util.Stack<java.lang.Object> stk,
                                      Project p)
                               throws BuildException

Overrides the version from DataType to recurse on nested ResourceComparators.

Overrides:

dieOnCircularReference in class DataType

Parameters:

stk - the stack of data types to use (recursively).

p - the project to use to dereference the references.

Throws:

BuildException - on error.